Home / 354,319,103,470.23-488,907,763,614.45-215,197,989,203.61

Finding the Fourth Proportional to 354,319,103,470.23, 488,907,763,614.45 and 215,197,989,203.61

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Solution

The fourth proportional to 354,319,103,470.23, 488,907,763,614.45 and 215,197,989,203.61 is: 296,941,278,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,319,103,470.23 : 488,907,763,614.45 = 215,197,989,203.61 : x
  2. Step 2: Convert to fraction form
    354,319,103,470.23/488,907,763,614.45 = 215,197,989,203.61/x
  3. Step 3: Cross multiply
    354,319,103,470.23x = 488,907,763,614.45 × 215,197,989,203.61
  4. Step 4: Simplify right side
    354,319,103,470.23x = 105,211,967,635,863,518,576,640
  5. Step 5: Solve for x
    x = 105,211,967,635,863,518,576,640/354,319,103,470.23
  6. Step 6: Final answer
    x = 296,941,278,653.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.